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1-19 of 39 Results
  1. OEM Issues
    I recently bought a 2004 trailblazer with 125k miles runs solid but fan was stuck on, easy fix the guy said just a fan clutch. I have read every forum here on the p0526 and tried everything I can't get this code to go away. I have changed the fan clutch 3x with 3 different brands I changed the...
  2. OEM Issues
    Got a bunch of codes and could use some advice... Truck just seems sluggish and sputtery at start up until it levels out on the road. Lost 3 or 4 mpg over the last months too. From what I can gather a bunch of codes are o2 sensor problems... I had a new one about 3 years ago when I had the...
  3. General
    I think my fan clutch is going out. It's really cold here this week and I've been getting a sorta rumbling bearing sound from the fan area. Not really a ticking, but a grinding type noise. I have gotten a code in the past about the clutch, it was doing that jumbo jet thing at startup, but it was...
  4. 02-09 General Tech Q&A
    I recently replaced the fan clutch on my 2007 TB 4.2l. Didn't fix the high fan speed issue and was actually worse than the original clutch. (Roared during acceleration and dropped horsepower like crazy) Next, I replaced the ect sensor, which, contrary to popular belief is not behind the...
  5. 02-09 General Tech Q&A
    I had a leak in antifreeze, overheating and overflow was full. I changed fan clutch and Water pump in November. Had a faulty fan clutch so exchanged it. Then leak again in March. Found a crack in radiaotr. Changed it and both hoses and 2 weeks later overheating again. Found fan clutch was out...
  6. 2013+ Chevrolet Trailblazer Forum
    I was wondering if anyone knew where to find the fan clutch wiring harness (part 89024920)? It's sold out everywhere and I think the part was discontinued by GM.
  7. Pictures and Videos
    Hey long story short i inherited this 09 trailblazer 4.2L 4x4 and it was in rough shape but its started making this noise 09 chevy trailblazer lt 4.2L issue 01 thought it was the fan clutch replaced the fan clutch and that cost me 188,drive up the road starts again now im starting to realize...
  8. 02-09 General Tech Q&A
    I drive a 2003 Trailblazer LT. I love the truck, it's a heck of a machine but it is falling apart on me. About three days ago when I started my TB the fan sounded really loud. When I put it in gear and accelerated the fan was speeding up and getting louder. Not gonna lie it sounds pretty cool...
  9. 02-09 General Tech Q&A
    I've been having a knocking sound on startup the last few days. I have a suspicion it's either the fan clutch or the water pump, probably both at this point. I took a video of the Running engine, the fan looks really loose and you can hear a bit of knocking. I also took a look at the Water pump...
  10. Introductions
    Hi everyone, I'm a mechanic enthusiast and a DIY'er, joined Trailvoy in 2016 looking for information before buying the Trailblazer, the site has been very helpful for my repairs and to get to know the truck. Bought it with 110.000 miles and my transmission failed trying to climb a steep hill in...
  11. OEM Issues
    Hi All, Want to preface this by saying that I have looked through many threads regarding the electro-viscous fan clutch, and I'm still stumped. The problem started on a long road trip, where it threw a fan speed too high code. Since the road trip the fan would not seem to change speed, nor was...
  12. The 02-09 "How-To" and DIY Section
    I've got a 2006 TB (4.2, V6, 4WD) with 218200 on it. She's old. Recently got a rebuild transmission installed, and just did the starter myself yesterday. Now, the next project... On a recent move from CO to CA I noticed two things. First the code (P0495) was thrown as I was climbing up I-70...
  13. General
    I had the fan clutch and water pump replaced in my 05 TrailBlazer back in August. Now every time I start the truck it sounds like a jet engine going off for about 20 - 30 seconds then calms down. I've read about people saying this happens during cold weather but it does it no matter what the...
  14. General
    hey guys how are you, i am new to the forum and i was wondering if anyone could give me a hand with this issue i have with my car, it is a 2002 tb lt, just bought a couple days ago, when i tested it, it drove fine, a couple days later it started to overheat, the ac is also not that cold, the fan...
  15. OEM Issues
    Ok this is what has been done: Replaced Fan Clutch a year ago (twice because the first one was bad within a month) Replaced Radiator, hoses, clamps, cap (done this past week) Water Pump replaced (Also replaced this past week) Thermostat replaced last year (done before fan clutch because no one...
  16. Engine Tunes/Mods
    Hi all, So the fan clutch on my 05 I6 has crapped out on me, leaving me with the decision of if I should replace the clutch or go with a Efan kit from PCMofNC. The internet seams to be divided on aftermarket Efans for the TB's, some saying that the added power draw is too much for the...
  17. OEM Issues
    ok so I recently had to take in my 05 trailblazer due to fan clutch and possible transmission issues. the shop is still looking at it and I figured getting a few more opinions couldn't hurt. I have the 4.2l 6 cylinder engine with 4x4. the engine has been popping fan over speed codes for about...
  18. OEM Issues
    Hey guys new to the forum i have a big problem i replaced the water pump in my 2006 trailblazer LS 4.2 V6 and now the fan clutch wont turn on at all and the car keeps overheating i dont know what i did wrong and i need to fix a.s.a.p if any of you can give me some advice or thoughts i need it...
  19. The "How-To" and DIY Section
    Sorry guys but I have another "fan clutch" thread. I was hearing a clicking sound on my 03 trailblazer (100K miles) that disappeared when I disconnected the link to the fan clutch. From what I have been reading, that is a classic sign that it is about to go. Then I started getting engine...
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